Evaluate
\frac{49}{8}=6.125
Factor
\frac{7 ^ {2}}{2 ^ {3}} = 6\frac{1}{8} = 6.125
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3+\frac{24+1}{8}
Multiply 3 and 8 to get 24.
3+\frac{25}{8}
Add 24 and 1 to get 25.
\frac{24}{8}+\frac{25}{8}
Convert 3 to fraction \frac{24}{8}.
\frac{24+25}{8}
Since \frac{24}{8} and \frac{25}{8} have the same denominator, add them by adding their numerators.
\frac{49}{8}
Add 24 and 25 to get 49.
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}